Add "Run/Debug PHP script" commands to the PHP and Zend stacks

[kaloyan-raev]

What does this PR do?

Adds commands to the PHP and Zend stacks for running and debugging PHP scripts, a.k.a. CLI apps:

• "run php script" - executes the PHP script open in the current editor
• "debug php script" - executes the PHP script open in the current editor in debug mode, i.e. it defines the required QUERY_STRING env var, so a debug session is opened to the Zend Debugger engine.

Both commands have a check if there is a file currently opened in the editor. If this is not the case, a user friendly message is printed.

What issues does this PR fix or reference?

This PR should be merge after merging the following two PRs:

• Zend Debugger for PHP Zend Debugger for PHP #3202
• Install Zend Debugger in the default PHP stack Install Zend Debugger in the default PHP stack che-dockerfiles#55

Previous behavior

The user had to type these commands manually in the Terminal. While it is relatively easy for the "run php script" command, the QUERY_STRING env var is complex and requires copying the value from some doc page.

New behavior

Easier running and debugging of PHP scripts by executing Che commands.

Signed-off-by: Kaloyan Raev [email protected]

[codenvy-ci]

Can one of the admins verify this patch?

[vparfonov]

@tolusha